117.1% is the change from 421 to 914
Calculation steps:
[( 914 - 421 ) ÷ 421] x 100 = 117.1%
Formula
Percentage change = [(914 - 421) / 421] x 100
Subtract the new number by the original number
914 - 421 = 493
493 ÷ 421 = 1.171021377672209
1.171021377672209 x 100 = 117.1%